Published March 1, 2002
| Version v1
Journal article
Extraction of a weak phase from B→D(*)π
- 1. Enrico Fermi Institute and Department of Physics, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637 (United States)
- 2. HEP Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439 (United States)
Description
To observe CP-violating asymmetries through the interference of a weaker amplitude with a stronger one in B0→D(*)π and B-bar0→D(*)π decays, one must collect enough events that the intensity associated with the weaker amplitude would be statistically significant. We show that, provided the weaker amplitude is measured separately in B±→D(*)±π0 decays, the time-integrated approach requires around 2.5x108 BB(bar sign) pairs for measurements of the weak phase sin(2β+γ) with an uncertainty of 0.05 or better. We also determine the optimal conditions for precise 2β+γ measurements and discuss the possibilities for resolving a discrete ambiguity
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.65.054025;
- arXiv
- arXiv:hep-ph/0110159v1;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 65
- Journal Issue
- 5
- Journal Page Range
- p. 054025-054025.9
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35043412
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANTI-B NEUTRAL MESONS; B MINUS MESONS; B NEUTRAL MESONS; B PLUS MESONS; B QUARKS; BRANCHING RATIO; CP INVARIANCE; D*-2010 MESONS; HADRONIC PARTICLE DECAY; KOBAYASHI-MASKAWA MATRIX; PIONS; THEORETICAL DATA
- Descriptors DEC
- ANTIMATTER; ANTIMESONS; ANTIPARTICLES; B MESONS; B NEUTRAL MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CHARM PARTICLES; CHARMED MESONS; DATA; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INFORMATION; INVARIANCE PRINCIPLES; MATRICES; MATTER; MESONS; NUMERICAL DATA; PARTICLE DECAY; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; QUARKS; VECTOR MESONS
Optional Information
- Notes
- (c) 2002 The American Physical Society